.layout {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
}
.menu {
  width: 256px !important;
  height: 100vh;
}

.body {
  width: calc(100vw - 256px);
  height: 100vh;
  padding: 16px;
  overflow: hidden;
  background-color: #fff;
}
